package com.wuzao.service;

/**
 * <p>
 *
 * </p>
 *
 * @author wuzuhao
 * @since 2023-08-03
 */
public interface Calculator {
    //定义加减乘除四个方法
    public int add(int i,int j);
    public int sub(int i,int j);
    public int mul(int i,int j);
    public int div(int i,int j);
}
